这个词是什么意思？
Synthesized from endogenous epinephrine and norepinephrine in vivo. It is found in brain, blood, CSF, and urine, where its concentrations are used to measure catecholamine turnover.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D008734 · MeSH 2026。
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